1. to express mirth, pleasure, derision, or nervousness with an audible, vocal expulsion of air from the lungs that can range from a loud burst of sound to a series of quiet chuckles and is usually accompanied by characteristic facial and bodily movements.

2.to experience the emotion so expressed: He laughed inwardly at the scene.

3. to produce a sound resembling human laughter: A coyote laughed in the dark.

First of all we need to get something straight. When you start reading a column, such as this, and the dude starts out with a dictionary meaning of the word laugh, he probably has too much time on his hands. Or he’s a kook, or both. I understand. A kook with too much time on his hands can be a worry for family members. I understand that too. Sorry, kids.

But the 1st meaning you read above has so many emotions that are a possibility when you laugh. You can feel mirth, pleasure, derision or nervousness and then you make a loud burst of sound. I think you can have multiple emotional feelings when laughing but sometimes there is a rare instance when you feel all 4 at once.